Year	% change from 1990
1991	3.48904202862765
1992	6.06560566267855
1993	3.72885287361482
1994	6.61705837018414
1995	0.824186102194568
1996	9.94261000995158
1997	6.64811032047108
1998	2.09507134466169
1999	8.05667167987309
2000	4.6592890225744
2001	12.3085441498874
2002	20.8051808121394
2003	15.4242145353057
2004	16.9001174736433
2005	17.9233353535807
2006	19.524942572598
2007	15.7452093948985
2008	16.9779344093021
2009	11.6459778371381
2010	11.2134952524187
2011	12.3256302049429
2012	13.4377651574671